Operation guide
All area view
The latest all-area view is shown.
The view range is approx.190km from east to west, approx.120km from north to south, centering Tokyo.
Clicking “Play” starts automatic replay to show change occurred in past 2 hours.
  • Tama West
  • Tama North
  • Tama South
  • 23-ward West
  • 23-ward East
・Select the municipality from pull-down menu of the buttons.
・Centering the selected municipality, a magnified view is shown.
・The range of the view is approx.48 kilometers from east to west, approx.30km from north to east.
・On the magnified view, grab and scroll operation is available.
Weather Watches and Warnings
Information from Bureau of Sewerage, Tokyo Metropolitan Government, is listed here.

詳細はこちら
Detailed information is shown

Weather Watches and Warnings
The latest warnings and advisories for Tokyo issued by Japan Meteorological Agency are shown.
Each of the buttons functions as follows.
5min backward 5min forward Play Pause Stop
In replay, move to the 5min backward view. In replay, move to the 5min forward view Automatic replay for 2 hours (from 120min before to the present) Pause automatic replay temporally Stop replay to move to the latest view.
the panel of the time axis By dragging the red button along the time scale or clicking directly the desired time, the previous view is shown.
Time sequential listing Reduced views are listed sequentially at once, which covers the latest 120 minutes. By selecting one among the 12 views, the all area view for the desired time is shown.
All area view Return from a magnified view to all area view(770×480 pixel).
Magnified view Magnified all area view, the size of which is 3080×1920 pixels is shown.

information list
Weather Watches and Warnings